Nitrocarburizing
气体碳氮共渗; 渗碳氮化
🗣️ 情景例句
My little boy is having a school play tonight, I don't want to miss it.
我的小儿子今晚会参加学校的戏剧表演，我不想错过了。
He who fears being conquered is sure of defeat.
怕吃败仗的就要打败仗。
What's up?
怎么了？